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crypto: ccree - modify set_cipher_mode usage from cc_hash

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encapsulate set_cipher_mode call with another api,
preparation for specific hash behavior as needed in later patches
when SM3 introduced.

Signed-off-by: Yael Chemla <yael.chemla@foss.arm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Yael Chemla 2018-10-18 13:59:58 +01:00 committed by Herbert Xu
parent f1e52fd0fb
commit 18a1dc1fd5
2 changed files with 23 additions and 9 deletions
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18
drivers/crypto/ccree/cc_hash.c
View File

@ -322,7 +322,7 @@ static int cc_fin_result(struct cc_hw_desc *desc, struct ahash_request *req,
/* Get final MAC result */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_hash_cipher_mode(&desc[idx], ctx->hw_mode, ctx->hash_mode);
/* TODO */
set_dout_dlli(&desc[idx], state->digest_result_dma_addr, digestsize,
NS_BIT, 1);
@ -441,7 +441,7 @@ static int cc_hash_digest(struct ahash_request *req)
* digest
*/
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_hash_cipher_mode(&desc[idx], ctx->hw_mode, ctx->hash_mode);
if (is_hmac) {
set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr,
ctx->inter_digestsize, NS_BIT);
@ -455,7 +455,7 @@ static int cc_hash_digest(struct ahash_request *req)
/* Load the hash current length */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_hash_cipher_mode(&desc[idx], ctx->hw_mode, ctx->hash_mode);
if (is_hmac) {
set_din_type(&desc[idx], DMA_DLLI,
@ -505,7 +505,7 @@ static int cc_restore_hash(struct cc_hw_desc *desc, struct cc_hash_ctx *ctx,
{
/* Restore hash digest */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_hash_cipher_mode(&desc[idx], ctx->hw_mode, ctx->hash_mode);
set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr,
ctx->inter_digestsize, NS_BIT);
set_flow_mode(&desc[idx], S_DIN_to_HASH);
@ -514,7 +514,7 @@ static int cc_restore_hash(struct cc_hw_desc *desc, struct cc_hash_ctx *ctx,
/* Restore hash current length */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_hash_cipher_mode(&desc[idx], ctx->hw_mode, ctx->hash_mode);
set_cipher_config1(&desc[idx], HASH_PADDING_DISABLED);
set_din_type(&desc[idx], DMA_DLLI, state->digest_bytes_len_dma_addr,
ctx->hash_len, NS_BIT);
@ -577,7 +577,7 @@ static int cc_hash_update(struct ahash_request *req)
/* store the hash digest result in context */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_hash_cipher_mode(&desc[idx], ctx->hw_mode, ctx->hash_mode);
set_dout_dlli(&desc[idx], state->digest_buff_dma_addr,
ctx->inter_digestsize, NS_BIT, 0);
set_flow_mode(&desc[idx], S_HASH_to_DOUT);
@ -586,7 +586,7 @@ static int cc_hash_update(struct ahash_request *req)
/* store current hash length in context */
hw_desc_init(&desc[idx]);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_hash_cipher_mode(&desc[idx], ctx->hw_mode, ctx->hash_mode);
set_dout_dlli(&desc[idx], state->digest_bytes_len_dma_addr,
ctx->hash_len, NS_BIT, 1);
set_queue_last_ind(ctx->drvdata, &desc[idx]);
@ -650,7 +650,7 @@ static int cc_do_finup(struct ahash_request *req, bool update)
/* Pad the hash */
hw_desc_init(&desc[idx]);
set_cipher_do(&desc[idx], DO_PAD);
set_cipher_mode(&desc[idx], ctx->hw_mode);
set_hash_cipher_mode(&desc[idx], ctx->hw_mode, ctx->hash_mode);
set_dout_dlli(&desc[idx], state->digest_bytes_len_dma_addr,
ctx->hash_len, NS_BIT, 0);
set_setup_mode(&desc[idx], SETUP_WRITE_STATE1);
@ -2035,7 +2035,7 @@ static void cc_setup_xcbc(struct ahash_request *areq, struct cc_hw_desc desc[],
XCBC_MAC_K1_OFFSET),
CC_AES_128_BIT_KEY_SIZE, NS_BIT);
set_setup_mode(&desc[idx], SETUP_LOAD_KEY0);
set_cipher_mode(&desc[idx], DRV_CIPHER_XCBC_MAC);
set_hash_cipher_mode(&desc[idx], DRV_CIPHER_XCBC_MAC, ctx->hash_mode);
set_cipher_config0(&desc[idx], DESC_DIRECTION_ENCRYPT_ENCRYPT);
set_key_size_aes(&desc[idx], CC_AES_128_BIT_KEY_SIZE);
set_flow_mode(&desc[idx], S_DIN_to_AES);

14
drivers/crypto/ccree/cc_hw_queue_defs.h
View File

@ -457,6 +457,20 @@ static inline void set_cipher_mode(struct cc_hw_desc *pdesc, int mode)
pdesc->word[4] |= FIELD_PREP(WORD4_CIPHER_MODE, mode);
}
/*
* Set the cipher mode for hash algorithms.
*
* @pdesc: pointer HW descriptor struct
* @cipher_mode: Any one of the modes defined in [CC7x-DESC]
* @hash_mode: specifies which hash is being handled
*/
static inline void set_hash_cipher_mode(struct cc_hw_desc *pdesc,
enum drv_cipher_mode cipher_mode,
enum drv_hash_mode hash_mode)
{
set_cipher_mode(pdesc, cipher_mode);
}
/*
* Set the cipher configuration fields.
*